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Sion weather in December (Canton of Valais, Switzerland)

What can you expect from the weather in Sion during December? Check out this comprehensive weather guide.

In December, Sion generally has very low temperatures and high snowfall. December falls within the winter season. Daytime temperatures hover around -3°C, while nights can cool down to about -12°C. It is a very cold month, so be prepared and make sure to dress up warm. It's always better to be prepared than to find oneself shivering in the cold.

Sion in December usually receives high snowfall, averaging around 139 mm for the month. Snow is expected on roughly 14 days.

The city usually sees around 70 hours of sunlight, indicating fewer sunny days.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Sion. July and August typically offer the most optimal weather. In contrast, January, February, March, April, May, October, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Sion climate page with graphs.

 

Sion, monthly averages in December

Min TemperatureMin Temperature -12°C  
Max TemperatureMax Temperature -3°C  
Chance of RainChance of Rain 48%  
PrecipitationPrecipitation 139 mm  
Rainy daysRainy days 14 days  
HumidityHumidity 83%  
WindspeedWindspeed 4 km/h  
SunshineSunshine 70 hours  
Percentage SunshinePercentage Sunshine 50%  

Where to go in Switzerland in December

Find out more about the weather in Switzerland in December and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Visitors traveling to Sion should plan on bringing winter clothes, snow boots and a warm winter coat. There will be periods of snow.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in December.

Swimming
1/10
Cycling
1/10
Walking
1/10
Camping
1/10
Outdoor sports
1/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Sion.

Our site offers climate and forecast data for every country in the world. Are you going to Switzerland? On this website you can find historical weather averages for many cities in Switzerland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.